Hello there! Greetings from tropical Costa Rica. Did you try crouching to fit through those tight spots? Hold SELECT and tap B to crouch, then use the D-pad to move through. Repeat the combo to stand up. In SameBoy, hold Backspace and tap Z. Crouching also makes you harder for guards to spot from a distance. Give it a try if possible and let me know, if you still can’t pass through certain areas I’ll get into it and try to make Reynaldo a tad smaller. Happy gaming.